Research Article
Optimization of a 12.5 GHz Microstrip Antenna Array Using Taguchi's Method
Table 4
The analysis of variance (ANOVA) table.
(a) General linear model: 12.5 GHz antenna array versus A; B; C; D; E |
| Factor | Type | Levels | Values |
| A | Fixed | 3 | 1; 2; 3 | B | Fixed | 3 | 1; 2; 3 | C | Fixed | 3 | 1; 2; 3 | D | Fixed | 3 | 1; 2; 3 | E | Fixed | 3 | 1; 2; 3 |
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(b) Analysis of variance for 12.5 GHz antenna array, using adjusted SS for tests |
| Source | DF degrees of freedom | Seq SS Seq/al sums squares | Adj SS adjusted sums squares | Adj MS adjusted means squares | F -statist Adj MS/P | P -value |
| A | 2 | 1340 | 1340 | 670 | 0.05 | 0.950 | B | 2 | 1592002 | 1592002 | 796001 | 61.68 | 0.000 | C | 2 | 230663 | 230663 | 15332 | 8.94 | 0.002 | D | 2 | 776 | 776 | 388 | 0.03 | 0.970 | E | 2 | 3383 | 3383 | 1691 | 0.13 | 0.878 |
| Error | 16 | 206484 | 206484 | 12905 | | |
| Total | 26 | 2034648 | | | | |
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S = 113.601 R-Sq = 89.85% R-Sq(adj) = 83.51%
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